Craig Mayer, Nick WIlliams, Vojtech Huser
Lister Hill National Center for Biomedical Communications, National Library of Medicine, NIH, Bethesda, MD

See the full regCTG repository at https://github.com/lhncbc/CRI/tree/master/regCTG

To return to the list of conditions and view other reports go to https://lhncbc.github.io/CRI/regCTG/regCTG-condition_report_links.html

Study Counts

Type	Study_count
Total_Studies	2106
interventional	1449
Observational	620
Registry	37

Studies over Time by Start Date

```

Interventional Trials

Intervention Type

intervention_type	Study_Count
Drug\|placebo	428
Drug	325
Other	188
Device	140
Behavioral	127
Procedure	75
Diagnostic Test	16
Biological	14
Device\|Drug	14
Device\|Other	12
Device\|Drug\|placebo	11
Behavioral\|Other	9
Dietary Supplement	9
Dietary Supplement\|placebo	9
Biological\|placebo	8
Device\|Procedure	6
Other\|placebo	6
Drug\|Other	5
Behavioral\|Drug	4
Drug\|Radiation	4
Biological\|Drug	3
Drug\|Procedure	3
Other\|Procedure	3
Radiation	3
Combination Product	2
Device\|placebo	2
Dietary Supplement\|Drug	2
Drug\|Other\|placebo	2
Behavioral\|Biological\|Diagnostic Test	1
Behavioral\|Device	1
Behavioral\|Device\|Procedure	1
Behavioral\|Dietary Supplement\|placebo	1
Behavioral\|Drug\|placebo	1
Behavioral\|Procedure	1
Combination Product\|Drug\|placebo	1
Combination Product\|placebo	1
Device\|Diagnostic Test	1
Device\|Drug\|Other	1
Device\|Drug\|Procedure	1
Device\|Other\|Radiation	1
Diagnostic Test\|Procedure	1
Dietary Supplement\|Other	1
Drug\|Genetic\|Procedure	1
Drug\|Other\|Procedure	1
Drug\|placebo\|Procedure	1
Drug\|placebo\|Radiation	1
placebo	1

Count of Studies by Intervention (normalized and mapped)

Interventions over Time

Yearly studies for each intervention by start date

Studies by Country

Country	Study_Count
United States	345
NA	121
United Kingdom	79
Germany	71
Canada	68
China	45
France	44
Brazil	31
Spain	27
Netherlands	26
Belgium	23
Italy	22
Denmark	21
Japan	19
Norway	18
Switzerland	17
Turkey	15
United States\|Canada	13
Australia	11
Kyrgyzstan	10
Sweden	10
Israel	9
Taiwan	9
India	8
Poland	8
Austria	7
Egypt	7
Korea, Republic of	6
Thailand	6
Hong Kong	5
Portugal	5
Tunisia	5
United States\|Germany	4
United States\|Puerto Rico	4
Greece	3
Ireland	3
Netherlands\|United Kingdom	3
New Zealand	3
Singapore	3
United States\|Australia\|Canada\|New Zealand	3
United States\|Australia\|New Zealand	3
Argentina	2
Australia\|New Zealand	2
Bangladesh	2
Belgium\|Netherlands	2
Colombia	2
Germany\|Spain\|United Kingdom	2
Germany\|Switzerland	2
Hungary	2
Indonesia	2
Japan\|	2
Pakistan	2
Russian Federation	2
Saudi Arabia	2
Slovenia	2
Sweden\|United Kingdom	2
United States\|Argentina\|Belgium\|Canada\|Chile\|China\|France\|Germany\|Italy\|Japan\|Korea, Republic of\|Poland\|Russian Federation\|Spain\|United Kingdom	2
United States\|United Kingdom	2
Andorra\|Austria\|Belgium\|Bulgaria\|Czech Republic\|Denmark\|France\|Germany\|Hungary\|Italy\|Netherlands\|Poland\|Romania\|Russian Federation\|Spain\|United Kingdom	1
Argentina\|Australia\|Belgium\|Brazil\|Denmark\|Germany\|India\|Philippines\|United Kingdom	1
Argentina\|Australia\|Canada\|Chile\|Czechia\|France\|Greece\|Hungary\|Korea, Republic of\|Netherlands\|Russian Federation\|South Africa\|United Kingdom	1
Argentina\|Australia\|France\|Germany\|Italy\|Japan\|Korea, Republic of\|Mexico\|Poland\|Romania\|Russian Federation\|Spain	1
Argentina\|Australia\|Germany\|India\|United Kingdom\|	1
Argentina\|Brazil\|Bulgaria\|Chile\|Germany\|Korea, Republic of\|Slovakia\|Spain	1
Argentina\|Brazil\|Canada\|Croatia\|Czech Republic\|Denmark\|Finland\|Germany\|Hong Kong\|India\|Italy\|Korea, Republic of\|Malaysia\|Norway\|Philippines\|South Africa\|Spain\|Sweden\|Thailand\|Ukraine	1
Argentina\|Brazil\|Canada\|Czech Republic\|Denmark\|Finland\|Germany\|Hong Kong\|India\|Italy\|Korea, Republic of\|Malaysia\|Norway\|Philippines\|Romania\|Russian Federation\|South Africa\|Spain\|Sweden\|Thailand	1
Argentina\|Chile\|China\|Taiwan	1
Argentina\|Chile\|Colombia\|Czech Republic\|Denmark\|Ecuador\|Egypt\|Estonia\|France\|Germany\|Hungary\|Israel\|Italy\|Korea, Republic of\|Latvia\|Lithuania\|Netherlands\|Peru\|Romania\|Russian Federation\|Slovakia\|Spain\|Switzerland\|Turkey\|United Kingdom	1
Argentina\|Chile\|Czechia\|Germany\|Hungary\|Norway\|Romania\|Russian Federation\|Spain\|Sweden	1
Argentina\|Chile\|New Zealand\|South Africa	1
Argentina\|Colombia\|Croatia\|Estonia\|Hungary\|India\|Israel\|Korea, Republic of\|Latvia\|Mexico\|Panama\|Poland\|Russian Federation\|Serbia\|Slovenia\|Turkey\|United Kingdom	1
Argentina\|Colombia\|Italy\|Malaysia\|Mexico\|Netherlands\|Spain\|Switzerland\|United Kingdom	1
Argentina\|France\|Germany\|Italy\|Norway\|Russian Federation\|Ukraine	1
Argentina\|Mexico\|Russian Federation\|Ukraine	1
Australia\|Austria\|Belgium\|Brazil\|Canada\|Denmark\|France\|Germany\|Greece\|Hungary\|Israel\|Italy\|Korea, Republic of\|Netherlands\|Poland\|Russian Federation\|Slovakia\|South Africa\|Spain\|Turkey\|United Kingdom	1
Australia\|Austria\|Canada\|France\|Germany	1
Australia\|Austria\|Canada\|France\|Hungary\|Italy\|Netherlands\|Poland\|Portugal\|Russian Federation\|South Africa\|Spain\|Switzerland\|United Kingdom	1
Australia\|Belgium\|Brazil\|Bulgaria\|China\|Denmark\|France\|Germany\|Greece\|Hungary\|Italy\|Netherlands\|New Zealand\|Philippines\|Poland\|Russian Federation\|South Africa\|Spain\|Taiwan\|Tunisia\|Turkey\|Ukraine\|United Kingdom	1
Australia\|Belgium\|Canada\|Czechia\|Denmark\|Germany\|Greece\|Ireland\|Israel\|Italy\|Poland\|Portugal\|Spain\|United Kingdom	1
Australia\|Belgium\|Canada\|France\|Germany\|Italy\|Spain\|Turkey	1
Australia\|Bulgaria\|Germany\|Netherlands\|New Zealand\|Romania	1
Australia\|Canada	1
Australia\|Canada\|Denmark\|France\|Ireland\|Netherlands\|New Zealand\|United Kingdom	1
Australia\|Chile\|New Zealand	1
Australia\|China\|India	1
Australia\|China\|Korea, Republic of\|New Zealand\|Taiwan	1
Australia\|Czech Republic\|Poland\|Russian Federation	1
Australia\|Germany\|Netherlands\|New Zealand\|Poland\|South Africa\|Spain	1
Austria\|Belgium\|Bulgaria\|Croatia\|Czech Republic\|Denmark\|Finland\|France\|Germany\|Hungary\|Italy\|Korea, Republic of\|Netherlands\|Poland\|Romania\|Russian Federation\|Slovakia\|South Africa\|Spain\|Sweden\|Ukraine\|United Kingdom	1
Austria\|Belgium\|Canada\|France\|Germany\|Italy\|Netherlands\|South Africa\|Spain\|United Kingdom	1
Austria\|Belgium\|Canada\|Germany\|Russian Federation	1
Austria\|Belgium\|Czech Republic\|Denmark\|Estonia\|Germany\|Greece\|Italy\|Latvia\|Lithuania\|Netherlands\|Norway\|Romania\|Russian Federation\|Slovakia\|Slovenia\|Spain\|Sweden\|Ukraine\|United Kingdom\|	1
Austria\|Belgium\|Denmark\|France\|Germany\|Netherlands\|South Africa\|Sweden	1
Austria\|Belgium\|France\|Germany\|Netherlands\|United Kingdom	1
Austria\|Bulgaria\|Canada\|Czech Republic\|France\|Germany\|Hungary\|Italy\|Lithuania\|Netherlands\|Poland\|South Africa\|Spain\|United Kingdom	1
Austria\|Denmark\|Finland\|France\|Slovenia	1
Austria\|Denmark\|Netherlands\|Norway\|Sweden	1
Austria\|France	1
Austria\|France\|Germany\|Hungary\|Italy\|Spain\|United Kingdom	1
Austria\|France\|Germany\|Israel	1
Belgium\|Bulgaria\|Greece\|Hungary\|Ireland\|Russian Federation\|Slovakia\|Spain\|Turkey\|United Kingdom	1
Belgium\|Canada\|Chile\|Germany	1
Belgium\|Canada\|Germany\|Netherlands	1
Belgium\|Canada\|Germany\|Spain\|United Kingdom	1
Belgium\|Czech Republic\|Denmark\|Germany\|Hungary\|Netherlands\|Spain\|Sweden	1
Belgium\|Czech Republic\|Estonia\|Germany\|Hungary\|Korea, Republic of\|Lithuania\|Norway\|Spain	1
Belgium\|Denmark\|Finland\|Germany\|Netherlands	1
Belgium\|Denmark\|Germany\|Hungary	1
Belgium\|Denmark\|Netherlands\|Romania\|Russian Federation	1
Belgium\|Finland\|France\|Germany\|Italy\|Netherlands\|Spain\|Sweden\|United Kingdom	1
Belgium\|France\|Germany\|Italy\|Philippines\|Poland\|Russian Federation\|Spain\|Ukraine	1
Belgium\|France\|Germany\|Netherlands\|Portugal\|Spain	1
Belgium\|France\|Japan	1
Belgium\|Germany	1
Belgium\|Italy\|Netherlands	1
Belgium\|Sweden	1
Bulgaria	1
Bulgaria\|China\|Czechia\|Estonia\|Germany\|Greece\|Hungary\|Italy\|Korea, Republic of\|Mexico\|Poland\|Romania\|Russian Federation\|Slovakia\|Ukraine	1
Bulgaria\|Czech Republic\|Hungary\|Poland\|Romania\|Slovakia	1
Bulgaria\|Finland\|Germany\|Hungary\|Slovakia	1
Bulgaria\|Germany\|Hungary\|Korea, Republic of\|Latvia\|Lithuania\|Macedonia, The Former Yugoslav Republic of\|Poland\|Romania\|Russian Federation\|Slovakia\|South Africa\|Spain\|Ukraine\|United Kingdom	1
Bulgaria\|Germany\|Hungary\|Ukraine	1
Bulgaria\|Germany\|Poland\|United Kingdom	1
Bulgaria\|Japan\|Romania\|Russian Federation\|Ukraine	1
Bulgaria\|Romania\|Russian Federation	1
Bulgaria\|Slovakia	1
Canada\|Colombia\|Czech Republic\|Denmark\|Finland\|France\|Germany\|Hungary\|Iceland\|India\|Italy\|Peru\|Russian Federation\|Slovakia\|Taiwan	1
Canada\|Croatia\|Czech Republic\|Estonia\|France\|Germany\|Guatemala\|India\|Korea, Republic of\|Latvia\|Lithuania\|Philippines\|Poland\|South Africa\|Taiwan	1
Canada\|Denmark	1
Canada\|Denmark\|Netherlands\|Romania\|Ukraine	1
Canada\|France\|Hungary\|India\|Korea, Republic of\|Latvia\|Lithuania\|Romania\|South Africa\|United Kingdom	1
Canada\|France\|Ireland\|Italy\|Netherlands\|Russian Federation	1
Canada\|France\|Portugal\|Spain	1
Canada\|Germany\|Hungary\|Spain	1
Canada\|Germany\|Netherlands\|Sweden	1
Canada\|Germany\|Spain	1
Canada\|Netherlands\|Switzerland	1
Canada\|United States\|Australia\|Germany\|Japan\|Korea, Republic of\|Philippines\|Poland\|Russian Federation\|Slovakia\|Taiwan\|Ukraine	1
Chile	1
China\|Hong Kong\|Indonesia\|Korea, Republic of\|Thailand	1
China\|India\|Korea, Republic of\|Philippines	1
China\|Japan\|Korea, Republic of	1
China\|Korea, Republic of	1
China\|Korea, Republic of\|Philippines\|Taiwan	1
China\|Korea, Republic of\|Philippines\|Taiwan\|Thailand	1
China\|Korea, Republic of\|Taiwan	1
Colombia\|United States\|Argentina\|Australia\|Austria\|Belgium\|Brazil\|Canada\|Chile\|China\|Czechia\|Denmark\|Finland\|France\|Germany\|Hong Kong\|Israel\|Japan\|Korea, Republic of\|Netherlands\|New Zealand\|Norway\|Peru\|Philippines\|Poland\|Puerto Rico\|Romania\|Russian Federation\|Singapore\|South Africa\|Spain\|Sweden\|Thailand\|Turkey\|Ukraine\|United Kingdom\|Vietnam	1
Czech Republic\|France\|Germany\|Hungary\|Italy\|Peru\|Poland\|Russian Federation\|South Africa\|Spain\|Ukraine	1
Czech Republic\|Germany\|Hungary\|Poland	1
Czech Republic\|Poland\|United Kingdom	1
Czech Republic\|Romania	1
Czechia\|Germany\|Greece\|Netherlands	1
Denmark\|Czechia\|Germany\|Hungary\|Netherlands\|Poland\|Russian Federation\|Spain	1
Denmark\|Estonia\|Finland\|Italy\|Lithuania\|Slovakia\|Spain\|United Kingdom	1
Denmark\|Finland\|Germany\|Netherlands\|United Kingdom	1
Denmark\|Finland\|Netherlands\|Norway	1
Denmark\|Finland\|Netherlands\|Norway\|Sweden	1
Denmark\|Germany	1
Denmark\|Germany\|Poland\|Sweden\|United Kingdom	1
Denmark\|Norway\|Sweden	1
Estonia\|Finland\|Germany\|Korea, Republic of\|Latvia\|Lithuania\|Netherlands\|New Zealand\|Russian Federation\|Slovenia\|South Africa\|United Kingdom	1
Estonia\|Finland\|Germany\|Netherlands\|Russian Federation\|Slovakia	1
Finland	1
France\|Germany\|Italy\|Spain	1
France\|Italy	1
France\|Italy\|Spain\|Tunisia	1
France\|United States\|Argentina\|Australia\|Austria\|Belgium\|Brazil\|Canada\|Chile\|China\|Czechia\|Denmark\|Finland\|Germany\|Greece\|India\|Israel\|Italy\|Japan\|Malaysia\|Mexico\|Netherlands\|Norway\|Poland\|Portugal\|Spain\|Sweden\|Switzerland\|Thailand\|United Kingdom	1
Germany\|Czech Republic\|Hungary\|Korea, Republic of\|Malaysia\|Poland\|Russian Federation\|Taiwan	1
Germany\|Estonia	1
Germany\|Greece\|Italy\|Netherlands\|Spain\|United Kingdom	1
Germany\|Greece\|United States\|Argentina\|Australia\|Austria\|Belgium\|Brazil\|Bulgaria\|Canada\|Chile\|China\|Croatia\|Czech Republic\|Denmark\|Estonia\|Finland\|France\|Hong Kong\|Hungary\|Iceland\|Italy\|Latvia\|Lithuania\|Malaysia\|Mexico\|Netherlands\|New Zealand\|Norway\|Pakistan\|Philippines\|Poland\|Puerto Rico\|Romania\|Russian Federation\|Singapore\|Slovakia\|South Africa\|Spain\|Sweden\|Taiwan\|Thailand\|Ukraine\|United Kingdom\|	1
Germany\|Hungary\|Italy	1
Germany\|Italy\|South Africa\|Switzerland	1
Germany\|Netherlands	1
Germany\|Netherlands\|United Kingdom	1
Germany\|Poland	1
Germany\|United States\|Belgium\|Canada\|Denmark\|Hungary\|Netherlands	1
Germany\|United States\|Belgium\|Hungary	1
Hong Kong\|India\|Japan\|Korea, Republic of\|Singapore\|Taiwan	1
Hong Kong\|Korea, Republic of\|Malaysia\|Philippines\|Taiwan	1
Hungary\|Belgium\|Bulgaria\|Finland\|Germany\|Israel\|Poland\|Romania\|Russian Federation\|Sweden	1
Iceland	1
India\|Japan\|Korea, Republic of\|Philippines\|Poland\|Russian Federation\|Taiwan\|Ukraine\|Vietnam	1
Iran, Islamic Republic of	1
Italy\|Spain\|Sweden	1
Japan\|United States\|Argentina\|Czechia\|Germany\|Poland\|Romania\|Russian Federation\|Ukraine	1
Korea, Republic of\|United States\|Australia\|Canada\|Japan\|Netherlands\|Romania\|Russian Federation\|Singapore\|Spain\|Turkey	1
Latvia\|United States\|Bulgaria\|Czech Republic\|Hungary\|Lithuania\|Philippines\|Poland\|Ukraine\|United Kingdom	1
Malawi\|Zimbabwe	1
Malaysia	1
Malaysia\|Singapore	1
Malta	1
Mexico	1
Netherlands\|South Africa	1
Netherlands\|United States\|Argentina\|Australia\|Canada\|Chile\|Estonia\|Germany\|Italy\|Mexico\|Peru\|Philippines\|South Africa\|Sweden\|United Kingdom	1
Netherlands\|United States\|Belgium\|Canada\|Czechia\|Germany\|Hungary\|Poland\|Romania\|Russian Federation\|United Kingdom	1
New Zealand\|Thailand\|United Kingdom	1
Norway\|Sweden	1
Peru	1
Russian Federation\|Finland\|Germany\|Netherlands\|United Kingdom	1
Slovakia\|Ukraine	1
South Africa	1
South Africa\|Estonia\|Germany\|Netherlands\|Romania\|Russian Federation\|Slovakia\|Sweden\|Ukraine	1
South Africa\|United Kingdom	1
Spain\|Australia\|Canada\|France\|Germany\|Hungary\|Poland\|Slovakia\|Sweden	1
Spain\|Australia\|Czechia\|Denmark\|Finland\|France\|Greece\|Hungary\|Norway\|Poland\|Portugal\|Russian Federation	1
Spain\|France\|Germany	1
Spain\|Sweden	1
Spain\|United States\|Canada\|Denmark\|Germany\|Poland\|United Kingdom	1
United Kingdom\|Belgium\|Greece\|Netherlands\|Switzerland	1
United States\|Andorra\|Argentina\|Brazil\|Chile\|France\|Germany\|Greece\|Ireland\|Israel\|Italy\|Mexico\|South Africa\|Spain\|United Kingdom	1
United States\|Argentina\|Australia\|Austria\|Belgium\|Brazil\|Bulgaria\|Canada\|Chile\|Colombia\|Croatia\|Czechia\|Denmark\|Finland\|France\|Germany\|Greece\|Guatemala\|Hong Kong\|Hungary\|India\|Ireland\|Italy\|Japan\|Korea, Republic of\|Latvia\|Lithuania\|Malaysia\|Mexico\|Netherlands\|New Zealand\|Norway\|Philippines\|Poland\|Portugal\|Romania\|Russian Federation\|Serbia\|Singapore\|Slovakia\|Slovenia\|South Africa\|Spain\|Sweden\|Switzerland\|Taiwan\|Thailand\|Turkey\|Ukraine\|United Kingdom\|Vietnam	1
United States\|Argentina\|Australia\|Austria\|Belgium\|Brazil\|Czech Republic\|Denmark\|Finland\|France\|Germany\|Greece\|Hong Kong\|Hungary\|Netherlands\|Ireland\|Italy\|Japan\|Lithuania\|Malaysia\|Mexico\|New Zealand\|Norway\|Philippines\|Poland\|Portugal\|Russian Federation\|Singapore\|Slovakia\|Slovenia\|South Africa\|Spain\|Switzerland\|Taiwan\|Thailand\|Turkey\|United Kingdom	1
United States\|Argentina\|Australia\|Austria\|Belgium\|Canada\|Chile\|Germany\|Italy\|New Zealand	1
United States\|Argentina\|Australia\|Austria\|Brazil\|Canada\|Chile\|Colombia\|Czechia\|Denmark\|Germany\|Hungary\|Italy\|Japan\|Korea, Republic of\|Netherlands\|New Zealand\|Philippines\|Poland\|Spain\|Sweden\|Turkey\|United Kingdom	1
United States\|Argentina\|Australia\|Belgium\|Brazil\|Bulgaria\|Canada\|China\|Croatia\|Czechia\|Denmark\|France\|Greece\|Hungary\|Israel\|Italy\|Korea, Republic of\|Poland\|Romania\|Singapore\|Spain\|Sweden\|Taiwan\|Ukraine\|United Kingdom	1
United States\|Argentina\|Australia\|Belgium\|Brazil\|Bulgaria\|Canada\|China\|Croatia\|Czechia\|Denmark\|France\|Greece\|Hungary\|Israel\|Italy\|Korea, Republic of\|Poland\|Romania\|Singapore\|Spain\|Taiwan\|Ukraine\|United Kingdom	1
United States\|Argentina\|Australia\|Belgium\|Brazil\|Bulgaria\|Chile\|Colombia\|Croatia\|Denmark\|France\|Israel\|Mexico\|New Zealand\|Norway\|Peru\|Philippines\|Poland\|Serbia\|Slovenia\|Sweden\|Taiwan\|Thailand\|Turkey\|Ukraine\|Vietnam	1
United States\|Argentina\|Australia\|Bulgaria\|Canada\|Chile\|Czech Republic\|Hungary\|India\|New Zealand\|Poland\|Slovakia\|South Africa\|Sweden\|United Kingdom	1
United States\|Argentina\|Australia\|Bulgaria\|Canada\|China\|Czech Republic\|Denmark\|Estonia\|Finland\|France\|Germany\|Guatemala\|Hungary\|India\|Italy\|Japan\|Korea, Republic of\|Mexico\|Netherlands\|New Zealand\|Portugal\|Russian Federation\|Slovenia\|Turkey	1
United States\|Argentina\|Australia\|Canada\|Chile\|Denmark\|Germany\|Italy\|Mexico\|Netherlands\|Peru\|South Africa\|Spain\|Sweden\|United Kingdom	1
United States\|Argentina\|Australia\|Canada\|Chile\|Denmark\|Germany\|Japan\|Korea, Republic of\|Netherlands\|Romania\|Slovakia\|Taiwan\|Ukraine\|United Kingdom	1
United States\|Argentina\|Australia\|Canada\|Chile\|Germany\|Korea, Republic of\|Mexico\|Romania\|South Africa	1
United States\|Argentina\|Australia\|Canada\|Chile\|Germany\|Poland\|Russian Federation\|Turkey\|Ukraine	1
United States\|Argentina\|Australia\|Canada\|France\|Germany\|Sweden\|Italy\|Mexico\|Netherlands\|South Africa\|Spain	1
United States\|Argentina\|Australia\|Canada\|Mexico\|New Zealand\|South Africa	1
United States\|Argentina\|Australia\|Colombia\|Denmark\|Germany\|Guatemala\|Mexico\|Philippines\|South Africa\|Spain\|Turkey	1
United States\|Argentina\|Austria\|Canada\|Colombia\|Czech Republic\|Hungary\|Denmark\|Estonia\|Finland\|France\|Germany\|Greece\|India\|Ireland\|Israel\|Italy\|Mexico\|Netherlands\|Peru\|Philippines\|Poland\|Puerto Rico\|Russian Federation\|Slovakia\|South Africa\|Spain\|United Kingdom	1
United States\|Argentina\|Austria\|Canada\|Germany\|Netherlands\|Russian Federation\|Sweden	1
United States\|Argentina\|Belgium\|Canada\|Czechia\|Germany\|Italy\|Netherlands\|Poland	1
United States\|Argentina\|Brazil\|Chile\|Costa Rica\|Mexico	1
United States\|Argentina\|Bulgaria\|Canada\|Chile\|China\|Czechia\|Denmark\|Finland\|Germany\|Hungary\|Israel\|Italy\|Japan\|Korea, Republic of\|Mexico\|Poland\|Romania\|Russian Federation\|Slovakia\|Spain\|Sweden\|Turkey\|Ukraine	1
United States\|Argentina\|Bulgaria\|Canada\|Chile\|Germany\|Hungary\|Korea, Republic of\|Netherlands\|Philippines\|Romania\|South Africa\|Thailand\|United Kingdom	1
United States\|Argentina\|Bulgaria\|Canada\|Czech Republic\|Germany\|Hungary\|Japan\|Poland\|Slovakia\|South Africa\|Spain\|Sweden\|Taiwan	1
United States\|Argentina\|Bulgaria\|Canada\|Denmark\|Hungary\|Mexico\|Poland\|Russian Federation	1
United States\|Argentina\|Bulgaria\|Canada\|Germany\|Hungary\|Romania\|Russian Federation\|Spain	1
United States\|Argentina\|Bulgaria\|Croatia\|Czechia\|Germany\|Hungary\|Poland\|Slovakia\|South Africa\|Spain\|Turkey	1
United States\|Argentina\|Canada\|Australia\|Austria\|Belgium\|Brazil\|Bulgaria\|China\|Colombia\|Croatia\|Denmark\|Finland\|France\|Georgia\|Germany\|Greece\|Guatemala\|Hungary\|India\|Ireland\|Israel\|Italy\|Korea, Republic of\|Latvia\|Lithuania\|Malaysia\|Mexico\|Netherlands\|New Zealand\|Norway\|Panama\|Peru\|Philippines\|Poland\|Portugal\|Puerto Rico\|Romania\|Russian Federation\|Serbia\|Slovakia\|South Africa\|Spain\|Sweden\|Switzerland\|Taiwan\|Thailand\|Tunisia\|Turkey\|Ukraine\|United Kingdom	1
United States\|Argentina\|Canada\|Chile\|Colombia\|Italy\|Malaysia\|Mexico\|Peru\|Philippines\|Romania\|Russian Federation\|Serbia\|Spain\|Taiwan\|Thailand\|Ukraine	1
United States\|Argentina\|Canada\|Chile\|Denmark\|Estonia\|Germany\|Korea, Republic of\|Mexico\|Peru\|Philippines\|Poland\|Russian Federation\|Slovakia	1
United States\|Argentina\|Canada\|Chile\|Denmark\|France\|Germany\|Italy\|Korea, Republic of\|Romania\|Russian Federation\|South Africa\|Ukraine	1
United States\|Argentina\|Canada\|Chile\|France\|Germany\|Hungary\|Israel\|Italy\|Korea, Republic of\|Mexico\|Netherlands\|New Zealand\|Peru\|Poland\|Russian Federation	1
United States\|Argentina\|Canada\|Chile\|Romania	1
United States\|Argentina\|Canada\|Colombia\|Mexico\|Peru	1
United States\|Argentina\|Canada\|Finland\|France\|Germany\|Hungary\|Italy\|Spain\|United Kingdom	1
United States\|Argentina\|Canada\|Germany\|India\|Italy\|Korea, Republic of\|Puerto Rico\|Spain\|Sweden\|Taiwan\|Turkey	1
United States\|Argentina\|Chile\|Greece\|Peru\|Romania\|Ukraine	1
United States\|Argentina\|Chile\|Guatemala\|Honduras\|Romania	1
United States\|Argentina\|Chile\|Netherlands\|Peru\|South Africa	1
United States\|Argentina\|Czechia\|Estonia\|Germany\|Korea, Republic of\|Norway\|Ukraine	1
United States\|Argentina\|France\|Greece\|Korea, Republic of\|New Zealand\|Poland\|Russian Federation\|South Africa\|Taiwan\|Turkey\|Ukraine\|United Kingdom	1
United States\|Argentina\|Germany\|Russian Federation\|Ukraine	1
United States\|Argentina\|Norway	1
United States\|Australia\|Austria\|Belgium\|Canada\|Denmark\|Germany\|New Zealand\|Poland\|Portugal\|United Kingdom	1
United States\|Australia\|Austria\|Brazil\|France\|Germany\|Hungary\|New Zealand\|Romania\|Russian Federation\|United Kingdom	1
United States\|Australia\|Austria\|Canada\|Finland\|France\|Greece\|Ireland\|Italy\|Netherlands\|New Zealand\|Russian Federation\|South Africa\|Spain\|United Kingdom	1
United States\|Australia\|Austria\|Canada\|Germany\|Greece\|New Zealand\|Norway\|Slovakia\|South Africa\|Sweden	1
United States\|Australia\|Belgium\|Canada\|Czechia\|Estonia\|France\|Greece\|Italy\|Mexico\|Norway\|Peru\|Poland\|Russian Federation\|Spain\|Sweden	1
United States\|Australia\|Belgium\|Canada\|France\|Germany\|Greece\|Netherlands\|Norway\|Russian Federation\|Spain\|Sweden\|Turkey\|United Kingdom	1
United States\|Australia\|Brazil\|Canada\|Colombia\|Germany\|Greece\|Romania\|Russian Federation\|Taiwan\|Turkey\|Ukraine\|United Kingdom	1
United States\|Australia\|Bulgaria\|Canada\|France\|Germany\|Guatemala\|Hungary\|Japan\|Philippines\|Poland\|Russian Federation\|Slovakia\|South Africa\|Spain\|Switzerland\|Taiwan\|Turkey\|United Kingdom	1
United States\|Australia\|Canada	1
United States\|Australia\|Canada\|Germany\|Korea, Republic of\|Netherlands\|Poland\|Romania\|Spain	1
United States\|Australia\|Canada\|United Kingdom	1
United States\|Australia\|China\|Germany\|New Zealand\|Taiwan	1
United States\|Australia\|New Zealand\|Poland\|Thailand	1
United States\|Austria\|Belgium\|Brazil\|Canada\|China\|Colombia\|Croatia\|Germany\|Hungary\|India\|Ireland\|Japan\|Norway\|Romania\|Russian Federation\|Serbia\|Slovakia\|South Africa\|Spain\|Sweden\|Taiwan\|Turkey\|United Kingdom	1
United States\|Austria\|Belgium\|Canada\|Colombia\|Denmark\|Finland\|France\|Germany\|Greece\|Hungary\|Israel\|Italy\|Mexico\|Norway\|Poland\|Russian Federation\|Slovakia\|Spain\|Switzerland\|Turkey\|United Kingdom	1
United States\|Austria\|Belgium\|Netherlands\|Switzerland\|United Kingdom	1
United States\|Austria\|Canada\|Czechia\|Germany\|Hungary\|Italy\|Japan\|Korea, Republic of\|Netherlands\|Poland\|Romania\|Russian Federation\|South Africa\|Spain\|Switzerland\|United Kingdom	1
United States\|Austria\|Netherlands\|United Kingdom	1
United States\|Belgium\|Argentina\|Austria\|Brazil\|Canada\|Chile\|Denmark\|Germany\|Italy\|Mexico\|Norway\|Peru\|Puerto Rico\|Russian Federation\|South Africa\|Spain\|Sweden\|United Kingdom	1
United States\|Belgium\|Canada\|Czech Republic\|Denmark\|Finland\|Germany\|South Africa\|Spain\|United Kingdom	1
United States\|Belgium\|Canada\|Czech Republic\|Germany\|Greece\|Netherlands\|Portugal\|Ukraine\|United Kingdom	1
United States\|Belgium\|Canada\|Denmark\|Italy\|Spain	1
United States\|Belgium\|Canada\|Germany	1
United States\|Belgium\|Canada\|Germany\|Netherlands	1
United States\|Belgium\|China\|France\|Germany\|Hong Kong\|Italy\|Korea, Republic of\|Netherlands\|Singapore\|Spain\|Taiwan\|United Kingdom	1
United States\|Belgium\|Denmark\|Estonia\|France\|Germany\|Hungary\|Japan\|Netherlands\|Norway\|Philippines\|Slovakia\|Sweden\|Ukraine	1
United States\|Belgium\|Germany\|Hungary\|Netherlands\|Poland\|Spain	1
United States\|Belgium\|Netherlands	1
United States\|Belgium\|New Zealand	1
United States\|Belgium\|Spain	1
United States\|Bulgaria\|Argentina\|Australia\|Austria\|Belarus\|Belgium\|Bosnia and Herzegovina\|Canada\|Chile\|China\|Colombia\|Croatia\|Czechia\|France\|Georgia\|Germany\|Greece\|Hungary\|India\|Indonesia\|Israel\|Italy\|Japan\|Korea, Republic of\|Latvia\|Macedonia, The Former Yugoslav Republic of\|Malaysia\|Mexico\|Netherlands\|Philippines\|Poland\|Romania\|Russian Federation\|Serbia\|Slovakia\|South Africa\|Spain\|Taiwan\|Thailand\|Turkey\|Ukraine\|United Kingdom\|Vietnam	1
United States\|Bulgaria\|Canada\|Chile\|Czechia\|Greece\|Japan\|Mexico\|Poland\|Russian Federation\|South Africa\|Spain\|Thailand	1
United States\|Bulgaria\|Canada\|France\|Hungary\|Russian Federation\|Ukraine	1
United States\|Bulgaria\|Czechia\|Germany\|Hungary\|Israel\|Poland\|Spain\|Ukraine\|United Kingdom	1
United States\|Bulgaria\|Czechia\|Germany\|Hungary\|Italy\|Latvia\|Poland\|Romania\|Russian Federation	1
United States\|Bulgaria\|Estonia\|Germany\|Russian Federation\|United Kingdom	1
United States\|Bulgaria\|Germany\|Hungary\|Romania\|Russian Federation\|Ukraine	1
United States\|Bulgaria\|Germany\|Japan\|Korea, Republic of\|Poland\|Romania\|Russian Federation\|South Africa\|Taiwan\|Ukraine	1
United States\|Canada\|Colombia\|Czech Republic\|Hungary\|India\|Netherlands\|Slovakia\|Spain	1
United States\|Canada\|Czechia\|Denmark\|South Africa\|Ukraine\|United Kingdom	1
United States\|Canada\|Czechia\|Germany\|Hungary\|Korea, Republic of\|Poland\|Russian Federation	1
United States\|Canada\|Czechia\|Germany\|Poland\|Romania	1
United States\|Canada\|Denmark\|France\|Germany\|Israel\|Korea, Republic of\|Netherlands\|Spain\|United Kingdom	1
United States\|Canada\|Denmark\|France\|Germany\|Netherlands\|Romania\|United Kingdom	1
United States\|Canada\|Denmark\|Germany\|United Kingdom	1
United States\|Canada\|France\|Germany\|Israel\|Italy\|Korea, Republic of\|Netherlands\|Sweden\|Switzerland\|United Kingdom	1
United States\|Canada\|France\|Germany\|Poland\|South Africa	1
United States\|Canada\|France\|Poland\|South Africa\|Spain\|United Kingdom	1
United States\|Canada\|Germany	1
United States\|Canada\|Germany\|Hungary\|Korea, Republic of\|Mexico\|Poland\|Russian Federation\|Spain\|Taiwan	1
United States\|Canada\|Germany\|India\|Italy\|Poland\|South Africa\|Spain	1
United States\|Canada\|Germany\|Netherlands\|Spain	1
United States\|Canada\|Italy	1
United States\|Chile\|Estonia\|Germany\|Japan\|Korea, Republic of\|Mexico\|Philippines\|Poland\|Russian Federation	1
United States\|Chile\|Estonia\|Russian Federation	1
United States\|Chile\|Mexico\|Norway\|Romania\|Russian Federation\|South Africa	1
United States\|Chile\|Romania\|Russian Federation\|Slovakia\|South Africa	1
United States\|China\|Germany\|Taiwan	1
United States\|Czech Republic\|Germany\|Hungary\|India\|Slovakia\|Spain\|Turkey	1
United States\|Czech Republic\|Germany\|Korea, Republic of	1
United States\|Czech Republic\|Germany\|Poland\|Romania\|South Africa	1
United States\|Czechia\|Germany	1
United States\|Czechia\|Germany\|Netherlands	1
United States\|Czechia\|Germany\|Poland\|Romania\|Russian Federation	1
United States\|Czechia\|Hungary\|Russian Federation	1
United States\|Finland\|Greece\|Italy\|Portugal\|Sweden\|Turkey\|United Kingdom	1
United States\|Finland\|Israel\|Italy\|Japan\|Korea, Republic of\|Portugal\|Spain\|Sweden\|United Kingdom	1
United States\|France\|Germany\|Italy\|Mexico\|Peru\|Poland\|Romania\|Russian Federation\|Ukraine	1
United States\|France\|Germany\|Netherlands\|Spain\|Turkey	1
United States\|Germany\|Italy\|Romania\|United Kingdom	1
United States\|Germany\|Italy\|South Africa\|Spain\|Ukraine	1
United States\|Germany\|Japan	1
United States\|Germany\|Korea, Republic of\|Norway\|Philippines\|Thailand	1
United States\|Germany\|Netherlands\|Norway	1
United States\|Germany\|Romania\|Russian Federation\|Ukraine	1
United States\|Germany\|South Africa	1
United States\|Germany\|Spain\|United Kingdom	1
United States\|Honduras	1
United States\|Netherlands\|United Kingdom	1
United States\|Poland\|Russian Federation	1

Sites per Study

Site_count	Study_Count
1	819
2	99
3	30
4	27
5	29
6	25
7	10
8	14
9	11
10	12
11	10
12	8
13	8
14	13
15	7
16	4
17	9
18	7
19	10
20	12
21	6
22	4
23	3
24	4
25	3
26	5
27	9
28	3
29	6
30	3
31	6
32	6
33	3
34	4
35	5
36	2
37	6
38	1
39	4
40	6
41	2
42	2
43	5
44	3
45	5
46	1
47	1
48	2
49	4
50	4
51	4
52	3
53	5
54	7
55	3
56	2
57	3
58	1
59	2
60	5
61	1
62	2
64	2
65	1
66	3
67	1
68	1
69	1
70	1
71	1
72	3
73	2
74	1
75	1
76	1
77	1
78	3
79	1
80	1
81	1
83	2
86	1
88	1
90	2
91	1
92	1
93	3
94	4
96	1
97	4
98	1
99	1
100	2
103	2
105	1
106	2
107	1
110	1
112	2
113	1
115	1
116	2
118	1
119	1
120	3
126	2
127	1
130	2
132	3
134	1
137	1
138	1
139	1
140	1
143	1
144	1
149	1
153	1
157	1
160	2
163	1
165	1
166	2
170	1
176	1
177	1
178	2
179	1
180	2
183	2
188	1
197	1
208	1
212	1
213	1
222	2
238	1
239	1
240	1
247	1
248	1
260	1
270	1
282	1
287	1
338	1
345	2
356	1
409	1
459	1
490	1
818	1
999	1
1191	1
1621	1

Phase

Phase	Study_Count
N/A	546
Phase 3	337
Phase 2	235
Phase 4	192
Phase 1	79
Phase 2/Phase 3	25
Phase 1/Phase 2	23
Early Phase 1	12

Number of Arms

Number_of_Arms	Count_of_Studies
1	198
2	787
3	143
4	80
5	44
6	25
7	7
8	10
9	3
10	2
12	3
16	1
NA	146

Enrollment Metrics by Phase

Measure	Early.Phase.1	N.A	Phase.1	Phase.1.Phase.2	Phase.2	Phase.2.Phase.3	Phase.3	Phase.4
Min.	5.00000	3.00	5.0000	6.00000	1.0000	20.00	14.0000	4.0000
1st Qu.	11.50000	28.75	15.0000	24.00000	38.5000	51.00	150.0000	48.7500
Median	20.00000	60.00	25.0000	35.00000	74.0000	120.00	429.0000	125.0000
Mean	78.41667	187134.42	39.4359	70.95652	157.4217	263.44	809.3448	286.0573
3rd Qu.	58.00000	127.75	45.7500	70.50000	185.5000	243.00	905.5000	279.2500
Max.	341.00000	99999999.00	198.0000	527.00000	2080.0000	2059.00	17183.0000	2696.0000

Trial Group Type

group_type	Group_Count
Experimental	1666
Active Comparator	654
Placebo Comparator	445
No Intervention	162
Other	160
NA	146
Sham Comparator	32

Intervention Model

intervention_model	Study_Count
Parallel Assignment	882
Crossover Assignment	287
Single Group Assignment	229
NA	32
Factorial Assignment	13
Sequential Assignment	6

Primary Purpose

primary_purpose	Study_Count
Treatment	1007
Supportive Care	99
Prevention	79
Diagnostic	72
Basic Science	59
Other	59
Health Services Research	34
NA	28
Screening	7
Device Feasibility	3
Educational/Counseling/Training	2

Observational Studies

Studies by Country

Country	Study_Count
NA	198
United States	121
Germany	36
France	28
United Kingdom	26
Canada	19
China	18
Belgium	10
Italy	10
Spain	10
Korea, Republic of	9
Sweden	9
Japan	8
Norway	8
Switzerland	8
Taiwan	8
Netherlands	7
Brazil	6
Greece	6
Israel	6
Turkey	6
Denmark	5
Ireland	4
Singapore	4
Austria	3
United States\|Canada	3
Costa Rica	2
Egypt	2
Hong Kong	2
Qatar	2
Russian Federation	2
Argentina\|Bangladesh\|Brazil\|Canada\|Chile\|China\|Colombia\|India\|Iran, Islamic Republic of\|Kazakhstan\|Kyrgyzstan\|Malaysia\|Pakistan\|Palestinian Territory, occupied\|Peru\|Philippines\|Poland\|Russian Federation\|Saudi Arabia\|South Africa\|Sweden\|Tanzania\|Turkey\|United Arab Emirates\|Zimbabwe	1
Argentina\|Colombia\|Uruguay\|Venezuela	1
Australia	1
Australia\|China\|Korea, Republic of\|Taiwan	1
Australia\|Germany	1
Australia\|New Zealand\|United Kingdom	1
Austria\|Belgium\|Denmark\|Finland\|France\|Germany\|Greece\|Ireland\|Italy\|Netherlands\|Norway\|Portugal\|Spain\|Sweden\|Switzerland\|Turkey\|United Kingdom	1
Austria\|Czechia\|Hungary\|Israel\|Romania\|Russian Federation\|Slovakia\|Slovenia\|Switzerland	1
Austria\|Germany	1
Belgium\|Denmark\|Finland\|Germany\|Netherlands\|Norway	1
Belgium\|France\|Germany\|Netherlands\|Poland\|Spain	1
Belgium\|Greece\|Netherlands\|United Kingdom	1
Bulgaria	1
Canada\|France	1
Croatia	1
Czechia	1
Denmark\|France\|Germany	1
Egypt\|Germany\|India\|Sri Lanka	1
Germany\|India\|Sri Lanka	1
Hungary\|Slovakia\|Slovenia	1
India	1
Italy\|Croatia\|Denmark\|Ireland\|Netherlands\|Norway\|Portugal\|Spain\|Sweden\|United Kingdom	1
Kazakhstan	1
Kyrgyzstan	1
Netherlands\|United Kingdom	1
Romania\|Bulgaria\|Czechia\|Hungary\|Israel\|Lithuania\|Poland\|Russian Federation\|Slovenia\|Switzerland\|Ukraine	1
Thailand	1
United States\|Argentina\|Australia\|Brazil\|Canada\|China\|Colombia\|Denmark\|France\|Germany\|Italy\|Japan\|Korea, Republic of\|Mexico\|Netherlands\|Norway\|Spain\|Sweden\|United Kingdom	1
United States\|Australia	1
United States\|Belgium\|Canada\|Denmark\|Finland\|Germany\|Japan\|Korea, Republic of\|Poland\|Spain\|Sweden\|United Kingdom	1
United States\|Bulgaria\|Canada\|Czech Republic\|Denmark\|Netherlands\|New Zealand\|Norway\|Slovenia\|Spain\|Ukraine\|United Kingdom	1
United States\|Bulgaria\|Canada\|Czech Republic\|France\|Germany\|Italy\|Russian Federation\|Sweden	1
United States\|Germany\|Italy	1
United States\|Puerto Rico	1

Sites per Study

Site_count	Study_Count
1	502
2	32
3	9
4	8
5	5
6	3
7	1
8	4
9	3
10	2
12	1
13	1
14	1
15	3
16	2
17	1
18	1
19	4
20	4
21	1
22	1
23	1
26	3
32	1
34	1
40	1
41	1
42	1
44	1
47	2
51	1
57	1
60	1
79	1
90	1
108	1
123	1
141	1
169	1
177	1
185	1
188	1
233	1
301	1
352	1
388	1
418	1
605	1
606	1

Enrollment Metrics

Measure	Observational
Min	1.00
1st Qu	75.75
Median	211.00
Mean	418803.68
3rd Qu	893.25
Max	99999999.00

Observation Model

observational_model	Study_Count
Cohort	295
NA	151
Case-Only	57
Case-Control	36
Other	31
Case Control	30
Family-Based	6
Case-Crossover	5
Natural History	4
Defined Population, Natural History	3
Ecologic or Community	2

Time Perspective

time_perspective	Study_Count
Prospective	327
NA	131
Cross-Sectional	77
Retrospective	72
Other	8
Cross-Sectional, Prospective	2
Longitudinal	1
Longitudinal, Prospective	1
Longitudinal, Retrospective	1

Registries

Studies by Country

Country	Study_Count
United States	7
China	3
Germany	3
Korea, Republic of	3
Brazil	2
Turkey	2
United Kingdom	2
Austria	1
Austria\|Bulgaria\|Croatia\|Czech Republic\|Hungary\|Latvia\|Poland\|Russian Federation\|Serbia\|Slovakia\|Slovenia	1
Austria\|France\|Germany\|Italy\|United Kingdom	1
Belgium	1
Canada	1
Finland	1
France	1
France\|Germany\|Italy\|Turkey\|United Kingdom	1
NA	1
Netherlands	1
Poland	1
Russian Federation	1
Taiwan	1
Tunisia	1
United States\|Puerto Rico	1

Sites per Study

Site_count	Study_Count
1	28
3	2
4	1
5	1
7	1
42	1
47	1
81	1
180	1

Enrollment Metrics

Measure	Registries
Min	20.000
1st Qu	100.000
Median	500.000
Mean	3012.459
3rd Qu	2000.000
Max	75000.000

Registry Model

observational_model	Study_Count
Cohort	26
Case-Only	5
Other	4
Case-Control	2

Time Perspective

time_perspective	Study_Count
Prospective	27
Cross-Sectional	5
Other	5

Follow-up

target_duration	Study_Count
1 Day	6
1 Year	5
10 Years	5
5 Years	5
1 Month	2
12 Months	2
15 Years	2
3 Years	2
4 Years	2
2 Days	1
4 Weeks	1
6 Months	1
60 Months	1
7 Months	1
8 Years	1

Overview of Studies

Interventional Trials

#If less then 500 trials

Observational Studiess

#If less then 500 studies

Registries

#If less then 500 registries

nct_id	brief_title	link	overall_status	source	primary_completion_date
NCT03755505	The Microbiome of Sputum, Urine and Feces in Healthy Persons and Chronic Obstructive Pulmonary Disease (COPD) Patients	https://ClinicalTrials.gov/show/NCT03755505	Recruiting	Asan Medical Center	2019-03-31
NCT03297775	Rheumatoid Arthritis Patients at Risk for Interstitial Lung Disease	https://ClinicalTrials.gov/show/NCT03297775	Recruiting	University of Colorado, Denver	2027-06-30
NCT03192267	Early Rheumatoid Arthritis Lung Disease Study	https://ClinicalTrials.gov/show/NCT03192267	Recruiting	University of Nebraska	2026-10-31
NCT03099525	Treatment Outcome and Prognostic Factors for Rheumatoid Arthritis (RA) Patients With Interstitial Lung Disease (ILD)	https://ClinicalTrials.gov/show/NCT03099525	Recruiting	Hanyang University	2021-03-31
NCT03014609	Cardiovascular Risk and Chronic Obstructive Pulmonary Disease	https://ClinicalTrials.gov/show/NCT03014609	Recruiting	University Hospital, Grenoble	2020-11-30
NCT02951416	Clinical Course of Interstitial Lung Diseases: European IPF Registry and Biobank	https://ClinicalTrials.gov/show/NCT02951416	Recruiting	University of Giessen	2025-01-31
NCT02907788	Inflammatory Markers in Broncho-alveolar Lavage Fluid as Risk Factors for Lung Disease in Infants With Cystic Fibrosis: the I-BALL Study	https://ClinicalTrials.gov/show/NCT02907788	Recruiting	Erasmus Medical Center	2022-12-31
NCT02853383	Registry of COPD Patients From Outpatient Polyclinic Healthcare Institutions of the Russian Federation in Moscow	https://ClinicalTrials.gov/show/NCT02853383	Recruiting	Interregional Public Organization, Russian Respiratory Society	2019-01-31
NCT02852928	European Management Platform for Childhood Interstitial Lung Diseases - chILD-EU Register and Biobank	https://ClinicalTrials.gov/show/NCT02852928	Recruiting	Ludwig-Maximilians - University of Munich	2024-12-31
NCT02803242	COPD Patient-Powered Research Network	https://ClinicalTrials.gov/show/NCT02803242	Recruiting	COPD Foundation	2025-01-31
NCT02777957	Predictors of Pulmonary Hypertension in Patients With Advanced Lung Diseases	https://ClinicalTrials.gov/show/NCT02777957	Active, not recruiting	Silesian Centre for Heart Diseases	2020-04-30
NCT02758808	Pulmonary Fibrosis Foundation Patient Registry	https://ClinicalTrials.gov/show/NCT02758808	Recruiting	University of Michigan	2021-03-31
NCT02732444	Erythrocytes Membrane Stability in COPD Patients in Long-Term Home Oxygen Therapy	https://ClinicalTrials.gov/show/NCT02732444	Completed	Federal University of Uberlandia	2017-08-31
NCT03035097	Deployment-Related Lung Disease Research Database and Biorepository	https://ClinicalTrials.gov/show/NCT03035097	Recruiting	National Jewish Health	2025-12-31
NCT02552160	DETECT-Register DocumEnTation and Evaluation of a COPD Combination Therapy	https://ClinicalTrials.gov/show/NCT02552160	Completed	AstraZeneca	2017-12-31
NCT02527486	Seoul National University Airway Registry	https://ClinicalTrials.gov/show/NCT02527486	Recruiting	Seoul National University Hospital	2021-12-31
NCT02119494	Phenotypes of COPD in Central and Eastern Europe	https://ClinicalTrials.gov/show/NCT02119494	Completed	Masaryk University	2015-12-31
NCT02002351	Prospective Study on Rehabilitation Patients With Pulmonary Hypertension and Other Pulmonary Diseases	https://ClinicalTrials.gov/show/NCT02002351	Completed	Paracelsus Harz Clinic Bad Suderode.	2015-12-31
NCT01952002	Clinical Safety for the Inspiratory Muscle Training	https://ClinicalTrials.gov/show/NCT01952002	Completed	ClÃnica de Medicina do ExercÃcio	2013-06-30
NCT01915511	Idiopathic Pulmonary Fibrosis and Interstitial Lung Disease Prospective Outcomes Registry	https://ClinicalTrials.gov/show/NCT01915511	Recruiting	Duke University	2025-01-31
NCT01794390	Handling Inhalers - Technique Error Comparison (HI-TEC)	https://ClinicalTrials.gov/show/NCT01794390	Completed	Research in Real-Life Ltd	2014-03-31
NCT04370158	Interstitial Lung Diseases Cohort Study in China	https://ClinicalTrials.gov/show/NCT04370158	Recruiting	China-Japan Friendship Hospital	2020-12-31
NCT04342078	Vitamin D and Health Outcomes in Preterm Born Population	https://ClinicalTrials.gov/show/NCT04342078	Enrolling by invitation	University of Oulu	2022-08-31
NCT04285047	Advancing the Patient Experience in Chronic Obstructive Pulmonary Disease (APEX COPD)	https://ClinicalTrials.gov/show/NCT04285047	Enrolling by invitation	Optimum Patient Care	2022-12-31
NCT04259736	Prospective Cohort Study of Molecular Mechanism of Lower Respiratory Tract Microbes in Patients With AECOPD	https://ClinicalTrials.gov/show/NCT04259736	Recruiting	Huashan Hospital	2020-12-31
NCT04180670	Prevalence of Urinary Incontinence and Evaluation of Related Factors in Patients With COPD	https://ClinicalTrials.gov/show/NCT04180670	Recruiting	Sanko University	2020-03-31
NCT04095351	Connective Tissue Diseases and Lung Manifestations	https://ClinicalTrials.gov/show/NCT04095351	Recruiting	Medical University Innsbruck	2021-03-01
NCT04050943	A Cohort of Patients With Chronic Pulmonary Disease	https://ClinicalTrials.gov/show/NCT04050943	Recruiting	The First Affiliated Hospital of Guangzhou Medical University	2021-09-01
NCT04016181	The Edinburgh Lung Fibrosis Molecular Endotyping (ELFMEN) Study	https://ClinicalTrials.gov/show/NCT04016181	Enrolling by invitation	University of Edinburgh	2022-03-31
NCT03995654	Research of Burden of Interstititial Lung Diseases in Turkey	https://ClinicalTrials.gov/show/NCT03995654	Active, not recruiting	Karadeniz Technical University	2020-07-01
NCT03853642	Blood Eosinophil Measurements in Patients With Chronic Obstructive Pulmonary Disease	https://ClinicalTrials.gov/show/NCT03853642	Completed	Universitair Ziekenhuis Brussel	2020-03-28
NCT03849040	The Use of Artificial Intelligence to Predict Cancerous Lymph Nodes for Lung Cancer Staging During Ultrasound Imaging	https://ClinicalTrials.gov/show/NCT03849040	Completed	St. Joseph’s Healthcare Hamilton	2019-09-23
NCT03747627	BPF Genetics of ILD Study	https://ClinicalTrials.gov/show/NCT03747627	Recruiting	NHS Forth Valley	2024-01-22
NCT03604952	Effects of Ramadan Observance in Male Patients With Chronic Obstructive Pulmonary Disease	https://ClinicalTrials.gov/show/NCT03604952	Completed	Faculty of Medicine, Sousse	2015-07-14
NCT02811588	Registry of Stable Hypercapnic Chronic Obstructive Pulmonary Disease Treated With Non-Invasive Ventilation	https://ClinicalTrials.gov/show/NCT02811588	Completed	ResMed	2017-12-31
NCT03540862	Negative Pressure Ventilator in Long-term Pulmonary Rehabilitation for Chronic Obstructive Pulmonary Disease	https://ClinicalTrials.gov/show/NCT03540862	Recruiting	Chang Gung Memorial Hospital	2020-12-30
NCT00014859	Epidemiology of Surfactant Protein-B Deficiency	https://ClinicalTrials.gov/show/NCT00014859	Recruiting	Washington University School of Medicine	2020-12-31

intervention_type	Study_Count
Drug\|placebo	428
Drug	325
Other	188
Device	140
Behavioral	127
Procedure	75
Diagnostic Test	16
Biological	14
Device\|Drug	14
Device\|Other	12
Device\|Drug\|placebo	11
Behavioral\|Other	9
Dietary Supplement	9
Dietary Supplement\|placebo	9
Biological\|placebo	8
Device\|Procedure	6
Other\|placebo	6
Drug\|Other	5
Behavioral\|Drug	4
Drug\|Radiation	4
Biological\|Drug	3
Drug\|Procedure	3
Other\|Procedure	3
Radiation	3
Combination Product	2
Device\|placebo	2
Dietary Supplement\|Drug	2
Drug\|Other\|placebo	2
Behavioral\|Biological\|Diagnostic Test	1
Behavioral\|Device	1
Behavioral\|Device\|Procedure	1
Behavioral\|Dietary Supplement\|placebo	1
Behavioral\|Drug\|placebo	1
Behavioral\|Procedure	1
Combination Product\|Drug\|placebo	1
Combination Product\|placebo	1
Device\|Diagnostic Test	1
Device\|Drug\|Other	1
Device\|Drug\|Procedure	1
Device\|Other\|Radiation	1
Diagnostic Test\|Procedure	1
Dietary Supplement\|Other	1
Drug\|Genetic\|Procedure	1
Drug\|Other\|Procedure	1
Drug\|placebo\|Procedure	1
Drug\|placebo\|Radiation	1
placebo	1

Site_count	Study_Count
1	502
2	32
3	9
4	8
5	5
6	3
7	1
8	4
9	3
10	2
12	1
13	1
14	1
15	3
16	2
17	1
18	1
19	4
20	4
21	1
22	1
23	1
26	3
32	1
34	1
40	1
41	1
42	1
44	1
47	2
51	1
57	1
60	1
79	1
90	1
108	1
123	1
141	1
169	1
177	1
185	1
188	1
233	1
301	1
352	1
388	1
418	1
605	1
606	1

Site_count	Study_Count
1	502
2	32
3	9
4	8
5	5
6	3
7	1
8	4
9	3
10	2
12	1
13	1
14	1
15	3
16	2
17	1
18	1
19	4
20	4
21	1
22	1
23	1
26	3
32	1
34	1
40	1
41	1
42	1
44	1
47	2
51	1
57	1
60	1
79	1
90	1
108	1
123	1
141	1
169	1
177	1
185	1
188	1
233	1
301	1
352	1
388	1
418	1
605	1
606	1

lung diseases

Study Counts

Studies over Time by Start Date

Interventional Trials

Intervention Type

Count of Studies by Intervention (normalized and mapped)

Interventions over Time

Studies by Country

Sites per Study

Phase

Number of Arms

Enrollment Metrics by Phase

Trial Group Type

Intervention Model

Primary Purpose

Observational Studies

Studies by Country

Sites per Study

Enrollment Metrics

Observation Model

Time Perspective

Registries

Studies by Country

Sites per Study

Enrollment Metrics

Registry Model

Time Perspective

Follow-up

Overview of Studies

Interventional Trials

Observational Studiess

Registries

Site_count	Study_Count
1	502
2	32
3	9
4	8
5	5
6	3
7	1
8	4
9	3
10	2
12	1
13	1
14	1
15	3
16	2
17	1
18	1
19	4
20	4
21	1
22	1
23	1
26	3
32	1
34	1
40	1
41	1
42	1
44	1
47	2
51	1
57	1
60	1
79	1
90	1
108	1
123	1
141	1
169	1
177	1
185	1
188	1
233	1
301	1
352	1
388	1
418	1
605	1
606	1